Street-lamp and burner



(No Model.)

J. S. WOOD. STREET LAMP AND BURNER.

No. 435.551. Patented Sept. 2, 1890.

8 E 8 8 E N H W ATTORNEYS.

Lfi.

UNITED STATES} PATENT Fries.

I JOSEPH S. \VOOD, OF BROOKLYN, NEXV YORK, ASSIGNOR 'lO' \VILLIAM F.

MOCULLY, TRUSTEE, OF PHILADELPHIA, PENNSYLVANIA.

STREET-LAMP AND BURNER.

SPECIFICATION forming part of Letters Patent No. 435,551, datedSeptember 2, 1890.

Application filed May 12, 1890. Serial No. 851,389. (No model.)

To all whom it may concern.-

Be it known that I, JosEPH S. Wool), of Brooklyn, in the county of Kingsand State of New York, have invented certain new and useful Improvementsin Street-Lamps and.

Burners, of which the following is a specification.

This invention relates to an improved streetlamp and burner of thatclass in which the gas is generated by the burner itself, to which asuitable hydrocarbon oil is supplied under pressure from a reservoir atthe upper part of the lamp, the burner being so constructed as to be initself a small generator of gas, which can be readily started andlighted and in which the size of the flame is regulated by means of aneedle-valve that opens or closes the supply-orifice of the burner; andthe invention consists in the construction and combination of parts anddetails, as will be fully described and set forth hereinafter, and thenpointed out in the claim.

In the accompanying drawings, Figure 1 represents a side elevation,partly in section, of a street-lamp with my improved gas-generatingburner. Fig. 2 is a vertical central section of my improved burner,drawn on a larger scale. Fig. 3 is a plan view of the same, and Fig. atshows a chandelier c011- structed on the same principle as thestreetlamp.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the reservoir, and A thesupporting-frame, of a street-lamp. The reservoir A is arranged at thetop of the same and open at the middle part, so that the products ofcombustion can pass through a dome-shaped portion A, having ahood-shaped portion A covering the outside of the lamp. The reservoir Ais provided with inclined or outwardly-flaring side walls, which can beused as reflecting-surfaces for throwing the light to the ground. Thereservoir A is supported on inclined corner rods or stays, which connectthe same with the base of the lamp, as shown clearly in Fig. 1. To theside walls of the reservoir A may be applied metallic corrugated panelsA which serve as more effective reflectors or panels-having the names ofthe streets on the same, as desired. The name-panels may, however, alsobe arranged above the reflectingsides and attached to the top part ofthe reservoir B, as shown in dotted lines in Fig. 1.

The reservoir A is provided with a supplyopening for the oil, whichopening is closed by a suitable screw-cap in the usual manner. Theburner B is located in the lower central part of the lamp-frame A andsupported at the lower end of an inclined supply-pipe O, which extendsalongside of one of the inclined corner-supporting rods or stays of thelampframe and connects the burner with the reservoir A. The horizontalmain tube 13 of the burner extends from the lower end of the supply-tube0 toward the middle part of the lamp and supports the gas-generatin gdevices of theburner. The burner-tube d is attached toa boss at the toppart of the main tube B, while a needlevalve D passes through a boss atthe under side at right angles to the main 'tube B, said needle-valvebeing provided with a suitable handle for adjusting the same higher orlower. The tapering point of the needle-valve D passes into thecorrespondingly-tapering portion of the supply-orifice at the base ofthe burnortube, so as to partly or entirely close the same. The outerend of the main tube 13 is closed by a screw-plug b. An alcohol-cup E isattached to the lower end of the boss at the under side of the maintube, said alcohol-cup serving in the usual manner for the purpose ofstarting the gas-generating burner.

At each side of the burner-tube d is arranged a yoke-shaped tube f,through which the oil is conducted. The upper horizontal ends of thetubes are bent around and on a level, or nearly so, with the tip intosemicircular portions f, which nearly encircle the tip of the burner. Astop-cock g extends transversely across the main tube B at a pointintermediately betweenthe needle-valve D and the upwardly-extendingportion of the tubes f, so as to compel the oil to pass into theupwardly-extending portions f and prevent it from passing into theremaining portion of the main tube 13. The oil is volatilized by theheat of the flame as it passes through the bent portions f, which latterform the retort in which the oil is changed into vapors. The vapors areconducted from the bent portions f through the downward portions of thetubesfinto the space formed in the main tube B between the stop-cock gand the end plug 1). The vapors are forced through the taperingsupply-orifice into the burner-tube d, said orifice acting in the natureof an air-ejector. The burner-tube d is provided above thesupply-orifice with an airhole h, through which the air that is to bemixed with the vapors is drawn in. By the suction of the vapors emittedthrough the supply-orifice around the needle-valve the air is drawn in,so that the intimate mixing of the air and vapors takes place in thelower part of the burner-tube. The gas thus formed is emitted throughthe slit of the burner-tip, so as to form aflaine when lighted. Byopening the needle-valve more or less a greater or smaller flame isproduced.

For lighting the burner, the alcohol-cup E is filled with alcohol, whichis lighted. The heat of the alcohol-flame heats up the main tube B andthe upwardly-extending portions of the tubes f, and produces thevaporizing of the oil in the same, so that the burner is started intoaction. As the oil is supplied under pressure from the reservoir, thegeneration of gas will be automatically kept up and the flames fed withgas as long as oil is supplied. After the burner is once started, it isnot necessary to extinguish the flame entirely; but a smallgenerating-flame is kept up by screwing in the needle-valve, andreducing thereby the size of the supply-orifice. This; keeps thegenerating portions of the burner warm during the time when no light isrequired and facilitates the quick generating of gas, when theneedle-valve is screwed down again and the supply-orifice opened in theevening when the street-lamp is to be lighted. 1 In this manner the lampcan be kept burning for a considerable length of time when care is takenthat the reservoir is refilled from time to time, and that the parts ofthe burner are kept clean, which is necessary from time to time. Forcleaning, the flame is extinguished entirely, and the needle-valve andclosing-plug of the main tube B removed, whereby all the parts can bereadily cleaned.

My improved street-lamp and gas-generating burn er is specially adaptedfor such places where no gas or electricity is available, as it combinesa number of advantages, such as a large flame, which is produced by thegas generated in the burner, a simple and effective construction of thegenerator, which is not apt to get out of order, and the facility bywhich the burner can be cleaned and repaired. The burner is also adaptedfor use with chandeliers, (shown in Fig. 3,) in which case thereservoiris arranged around the central hanger-tube of the chandelier,while the burners are supported on arms radiating from said central tubeand connected with said hanger-tube by suitable oil-supply tubes.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A gas-generating burner composed of a horizontalsupply-tube, a needle-valve extending at right angles through the same,a stopcock extending transversely through the main tube, a burner-tubeprovided with a supplyorifice, and an air-opening and yoke-shaped tubesextending from the main tube in upward direction, one-at each-side ofthe burner, said tubes having bent top portions forming retortsconcentric to the tip of the burner, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname impresence of two subscribing witnesses.

JOSEPH WOOD.

